Superheater.



C. D. YOUNG.

SUPERHEATER.

APPLlCATlON FILED NOV. 26. 1913.

Patented May 8, 1917.

WITN ESSES IPAENT FI IGE.

CHARLES D. YOUNG, 0F .AL'IOONA, PENNSYLVANIA.

SUPERI-IEATER.

Application filed November 26, 1913.

To all whom it may concern:

Be it known that I, CHARLES D. YOUNG, a citizen of the United States, residing at Altoona, in the county of Blair and State of Pennsylvania, have invented certain new and useful Improvements in Superheaters, of which the following is a specification.

The invention relates to superheaters, and more particularly to superheaters for use in connection with fire tube boilers, such as are employed in locomotive and traction engines. The invention has for its principal objects; the provision of an arrangement whereby access may be secured to the ends of the superheater tubes in the headers for expanding or cutting out the same without the use of hand holes or the like requiring separate closure means; and the provision of a construction wherein ample space is provided upon the header drum for the connection of the various superheater tubes. One embodiment of the invention is illustrated in the accompanying drawings, wherein- Figure 1 is a longitudinal section through the front end of a locomotive and its smoke box equipped with one form of my invention, and Fig. 2 is a half section taken through the smoke box and showing the tube arrangement in end elevation.

As shown in Figs. 1 and 2 the drum 21 is secured at its ends to the walls of the boiler 22 and a closure of such ends is secured by means of the removable cover plates 23. In order to provide a flat space in which to roll the tubes the drum is flattened at its lower portion as indicated at 24, and the ends of the superheater tubes 25, 26, 27, and 28 lying in the fire tubes 29 have their ends expanded into the said flattened portion 24, one end of each tube lying to the rear of the partition 30, and the other tube end lying to the front thereof. The dry pipe 31 opens into the rear side of the drum, while the front side of the drum is provided with an outlet opening over which is bolted the outlet T 32. The cover plate 10 gives access to the ends of the superheater tubes at the central portion of the drum and back of the partition 30 when the outlet T 32 is removed.

The ends of the alternate tubes 26 and 28 (Fig. 2) are bent laterally to the right as they emerge from the fire tubes, while the tubes 27 have their ends bent to the left as Specification of Letters Patent.

Patented May 8, 191?.

Serial No. 803,114.

they emerge from the fire tubes. The ends of the upper tubes 25 are of course not bent, but extend vertically, the arrangement being such that any tube may be removed with the least possible difficulty, by springing tubes which would otherwise interfere, laterally suflicient to permit the removal of the desired tube. The upper wall of the drum is imperforate, and access is had to the ends of the tubes for expanding or cutting out by removing the cover plate 23 at the end of the drum, and by removing the T 32, from which latter point the ends of the tubes at the center of the drum are most accessible. Various other modifications of the invention might be made without departing from the spirit of the invention which contemplates broadly the arrangement of tubes as heretofore described, and the provision of the drum in which the necessityfor handholes is avoided by utilizing the outlet opening to secure access to the ends of the tubes for expanding or cutting out.

What I claim is:

1. In combination with a boiler having fire tubes and a smoke box, a drum approxi mately circular in. cross-section extending transversely of the end of the boiler and 1ying in the smoke box, and having its ends opening through the sides of the smoke box, cover plates for the ends of the drum, an upright partition in the drum dividing it into two chambers, and a plurality of superheater tubes lying in the fire tubes with their ends expanded into the wall of the drum on opposite sides of the partition.

2. In combination with a boiler having fire tubes and a smoke box, a drum in the smoke box extending transversely of the end of the boiler with its ends opening through the walls of the smoke box, cover plates for the ends of the drum, a partition dividing the drum into two chambers, and a plurality of superheater tubes lying in the fire tubes and having their ends communicating with the said chambers on opposite sides of the partition.

In testimony whereof I have hereunto signed my name in the presence of the two subscribed witnesses.

CHARLES D. YOUNG.

Witnesses:

W. J. MOFARLAND, OTTO B. Fonnnn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). 0. 

